import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getAccessToken, getRefreshToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 30000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['Authorization'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['Authorization'] = getAccessToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  async response => {
    let res = response.data
    console.log(res)
    // if the custom code is not 20000, it is judged as an error.
    if (res && res.code !== 100000) {
      if (res.code === 100004) {
        let flag = false
        if (getRefreshToken()) {
          //刷新token
          // console.log("开始刷新token")
          await store.dispatch('user/refreshToken').then(async () => {
            //重新请求
            if (getAccessToken()) {
              response.config.headers['Authorization'] = getAccessToken()
              // console.log("重新请求", response.config)
              await service(response.config).then(new_res => {
                flag = new_res.code == 100000
                // console.log("重新请求结果", new_res)
                res = new_res
              })
            }
          })
        }
        // console.log("刷新token结果", flag)
        if (flag) {
          //重新请求成功
          // console.log("重新请求成功", res)
          return res
        } else {
          MessageBox.confirm('登录失效,请重新登录', '提示', {
            confirmButtonText: '重新登录',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {
            store.dispatch('user/resetToken').then(() => {
              location.reload()
            })
          })
        }
      }
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      if (res.data && res.data.total) {
        res.data.total = parseInt(res.data.total)
      }
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
